diff options
Diffstat (limited to 'drivers/hwmon/max6639.c')
| -rw-r--r-- | drivers/hwmon/max6639.c | 30 |
1 files changed, 16 insertions, 14 deletions
diff --git a/drivers/hwmon/max6639.c b/drivers/hwmon/max6639.c index f20d9978ee7..a6760bacd91 100644 --- a/drivers/hwmon/max6639.c +++ b/drivers/hwmon/max6639.c @@ -72,8 +72,8 @@ static unsigned short normal_i2c[] = { 0x2c, 0x2e, 0x2f, I2C_CLIENT_END }; static const int rpm_ranges[] = { 2000, 4000, 8000, 16000 }; -#define FAN_FROM_REG(val, div, rpm_range) ((val) == 0 ? -1 : \ - (val) == 255 ? 0 : (rpm_ranges[rpm_range] * 30) / ((div + 1) * (val))) +#define FAN_FROM_REG(val, rpm_range) ((val) == 0 || (val) == 255 ? \ + 0 : (rpm_ranges[rpm_range] * 30) / (val)) #define TEMP_LIMIT_TO_REG(val) SENSORS_LIMIT((val) / 1000, 0, 255) /* @@ -208,7 +208,7 @@ static ssize_t set_temp_max(struct device *dev, unsigned long val; int res; - res = strict_strtoul(buf, 10, &val); + res = kstrtoul(buf, 10, &val); if (res) return res; @@ -241,7 +241,7 @@ static ssize_t set_temp_crit(struct device *dev, unsigned long val; int res; - res = strict_strtoul(buf, 10, &val); + res = kstrtoul(buf, 10, &val); if (res) return res; @@ -275,7 +275,7 @@ static ssize_t set_temp_emergency(struct device *dev, unsigned long val; int res; - res = strict_strtoul(buf, 10, &val); + res = kstrtoul(buf, 10, &val); if (res) return res; @@ -308,7 +308,7 @@ static ssize_t set_pwm(struct device *dev, unsigned long val; int res; - res = strict_strtoul(buf, 10, &val); + res = kstrtoul(buf, 10, &val); if (res) return res; @@ -333,7 +333,7 @@ static ssize_t show_fan_input(struct device *dev, return PTR_ERR(data); return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[attr->index], - data->ppr, data->rpm_range)); + data->rpm_range)); } static ssize_t show_alarm(struct device *dev, @@ -429,9 +429,9 @@ static int max6639_init_client(struct i2c_client *client) struct max6639_data *data = i2c_get_clientdata(client); struct max6639_platform_data *max6639_info = client->dev.platform_data; - int i = 0; + int i; int rpm_range = 1; /* default: 4000 RPM */ - int err = 0; + int err; /* Reset chip to default values, see below for GCONFIG setup */ err = i2c_smbus_write_byte_data(client, MAX6639_REG_GCONFIG, @@ -446,11 +446,6 @@ static int max6639_init_client(struct i2c_client *client) else data->ppr = 2; data->ppr -= 1; - err = i2c_smbus_write_byte_data(client, - MAX6639_REG_FAN_PPR(i), - data->ppr << 5); - if (err) - goto exit; if (max6639_info) rpm_range = rpm_range_to_reg(max6639_info->rpm_range); @@ -458,6 +453,13 @@ static int max6639_init_client(struct i2c_client *client) for (i = 0; i < 2; i++) { + /* Set Fan pulse per revolution */ + err = i2c_smbus_write_byte_data(client, + MAX6639_REG_FAN_PPR(i), + data->ppr << 6); + if (err) + goto exit; + /* Fans config PWM, RPM */ err = i2c_smbus_write_byte_data(client, MAX6639_REG_FAN_CONFIG1(i), |